no need to heat. scrape it off but make sure you scape in the direction where the scraper makes an acute angle with the board. as depicted here / =>. if you do it the other way you gouge the wax and it will be too thin. I would also suggest roughing it up with a brush of some sort, preferably a light brass, iron wool works well too but dont apply pressure

no need to heat. scrape it off but make sure you scape in the direction where the scraper makes an acute angle with the board. as depicted here / =>. if you do it the other way you gouge the wax and it will be too thin. I would also suggest roughing it up with a brush of some sort, preferably a light brass, iron wool works well too but dont apply pressure